Final TBMs delivered for Sydney Metro West, Australia April 17, 2024 | Asia Pacific News, News The final tunnel boring machines (TBMs) have been delivered for the Sydney Metro West. The two TBMs will carve out the 2.3-km-long twin tunnels from The Bays to Hunter Street as part of the Sydney Met... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password